61180623 has 16 divisors (see below), whose sum is σ = 103586560. Its totient is φ = 34960248.

The previous prime is 61180601. The next prime is 61180657. The reversal of 61180623 is 32608116.

It is not a de Polignac number, because 61180623 - 2⁵ = 61180591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61180663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161665 + ... + 162042.

It is an arithmetic number, because the mean of its divisors is an integer number (6474160).

Almost surely, 2^61180623 is an apocalyptic number.

61180623 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

61180623 is a deficient number, since it is larger than the sum of its proper divisors (42405937).

61180623 is a wasteful number, since it uses less digits than its factorization.

61180623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323723 (or 323717 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 61180623 is about 7821.8043314826. The cubic root of 61180623 is about 394.0378720241.

Adding to 61180623 its reverse (32608116), we get a palindrome (93788739).

The spelling of 61180623 in words is "sixty-one million, one hundred eighty thousand, six hundred twenty-three".